a lost cause: a hopeless case, a person or situation having no hope of positivechange. Examples of A LOST CAUSE Repeat these steps as necessary to remove the stain, but it may be a lost cause. Even this late in the game, the search for the black boxes is not a lost cause.

to put on: to place oneself (usually said of clothes) Examples of PUT ON She couldn’t wait to put on her prom dress. The king needs to put on his crown.

to call on: to ask for a response from; to visit (also: to drop in on) Examples of CALL ON I thought it would be fun to call on my friend while I was doing my presentation. The teacher managed to call on me in every class.

to go out: to stop functioning; to stop burning; to leave home or work (also:to step out) Examples of GO OUT I bought groceries because it is too expensive to go out to restaurants every night. David was going to go out of town for a few weeks, and so he asked Anna to water…

all of a sudden: suddenly, without warning (also: all at once) Examples of ALL OF A SUDDEN It seems like, all of a sudden, you’re mad at me, and I can never figure out why. All of a sudden, the storm subsided and the rain stopped.  

to fool around: to waste time (also: to screw around); to joke, not to be serious Examples of TO FOOL AROUND – The problem doesn’t seem to be that participants are bored and fooling around.– I’ve been fooling around with the 5mx and find it a generally agreeable machine.